Related Experiment Video
Updated: May 24, 2026
05:49
Reliability of Artificial Intelligence-Based Cone Beam Computed Tomography Integration with Digital Dental Images
Published on: February 23, 2024
Comparison of root resorption between self-ligating and conventional preadjusted brackets using cone beam computed
Vanessa Leite1, Ana Claudia Conti, Ricardo Navarro
1Department of Orthodontics, University of North Paraná, Londrina, Paraná, Brazil.
The Angle Orthodontist
|March 14, 2012
Summary
This study found that both self-ligating and conventional orthodontic brackets caused external apical root resorption (EARR) in incisors. However, bracket design did not significantly impact the degree of EARR observed during initial orthodontic treatment.
Area of Science:
- Orthodontics
- Dental Imaging
- Biomaterials
Background:
- External apical root resorption (EARR) is a common side effect of orthodontic treatment.
- Understanding the influence of bracket design on EARR is crucial for patient outcomes.
Purpose of the Study:
- To compare the magnitude of EARR in incisors between self-ligating and conventional preadjusted orthodontic brackets.
Main Methods:
- 19 Angle Class I patients with mild to moderate crowding were randomly assigned to self-ligating or conventional bracket groups.
- Cone-beam computed tomography (CBCT) scans were used to measure EARR in 152 incisors before and after 6 months of treatment.
- Statistical analysis included paired and nonpaired t-tests.
Main Results:
- Significant EARR was observed in both groups between baseline and 6 months.
- No statistically significant difference in the degree of EARR was found between the self-ligating and conventional bracket groups.
Conclusions:
- While EARR occurred in all evaluated teeth, the type of bracket (self-ligating vs. conventional) did not influence the observed resorption.
- Further research may explore other factors contributing to EARR in orthodontic patients.
